Peter Bergman of Firesign Theatre just died. He has nothing to do with D&D that I know of, although FT albums were among the many influences behind my attempts at surreal RPG designs. But I was just thinking that there might be some weird inspiration in FT for some gonzo D&D. Certainly the killer kudzu vines (and the cult that worships them) from Eat or Be Eaten would make a good scenario. Or how about a time travel device that causes its users to age? Or a "game" where someone injects his captives with a disease and challenges them to guess the disease in exchange for the antidote?
I may actually write up the kudzu vines, or a one-page encounter area based on them. I'll think about other FT inspirational material some more.